relative to subdivision regulations on the completion of improvements and the regulation of building permits.

HB 413 requires developers to complete specified construction improvements (such as roads and utilities) before receiving building permits for new subdivisions. This directly affects residential developers and local governments that issue building permits. The bill changes current practice by mandating that these improvements must be finished and approved prior to permit issuance, rather than allowing permits to be granted before completion. The law took effect on July 1, 2025, after being signed by Governor Ayotte.